Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 2268 J 80 J 4.2 J 336 J 2268 J 80 J 4.2 J 336 J ANSWER DOWNLOAD EXAMIANS APP
Physics Light from Sun reaches Earth in approximately 3 minutes 10 minutes 8 minutes 12 minutes 3 minutes 10 minutes 8 minutes 12 minutes ANSWER DOWNLOAD EXAMIANS APP
Physics The electrical domestic tube light gives white fluorescent light because of Vacuum inside the tube Falling of ultra violet rays on the white inner coating of the tube Heavy current Colision between molecules of filled gas under electric current Vacuum inside the tube Falling of ultra violet rays on the white inner coating of the tube Heavy current Colision between molecules of filled gas under electric current ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because It is a good conductor of heat It reflects heat It is a poor conductor of heat External heat rays enter into the body through the woollen cloth It is a good conductor of heat It reflects heat It is a poor conductor of heat External heat rays enter into the body through the woollen cloth ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre? -3.75 diopters -11.25 diopters 3.75 diopters 11.25 diopters -3.75 diopters -11.25 diopters 3.75 diopters 11.25 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? Due to its shape Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to its shape Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water ANSWER DOWNLOAD EXAMIANS APP
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